Pipe-coupling.



E. B. E. EYTMER.

PIPE GOUPLING. AFPLlaATIoN mio $55.28. 19u.

Patene Feb. 25, 1919.

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application nieu February 28, w1?. Serial i'o. w.

To @ZZ whom t may concern Be it known that l, Enfers B. E. Dnfrriien, a citizen of the United/(States, residing at Chicago, in the county of Cook and Stateoi' illinois, have invented certain nevvv and use,

7 duit pipes for carrying the electroconductorsyv and has for its object to provide a coupling that can bc quickly and conveniently applied or taken oli the pipe sections. y

Another object is to provide o coupiing, that will hold the pipe sections in proper position and lock the seme so that the :ficcidentel displecernent thereof will be eliminoted.

A further object is the provision'o'i e Ineens of access to the interior ci the coupling, so that repairs may be mede to the wires in the coupling without necessitating the removal of the coupling.

A still further object is the provision of e. coupling having ineens et each end thereof to receive e pipe section and having pnwls to engage in notches 'formed in the ends ot' the pipe sections, end edj'ustebie ineens to engage the pawls to prevent the same from riding out of the notches.

' {With these and other objects in view the invention consists in the construction and novel combination end arrangement of parts hereinafter fully described, illustrated in the accompanying drawings end set forth in the claim hereto appended, it being nuderstoo'd that various changes in the form,

, proportion and minor details of construction may be resorted to without departing *from the spirit or sacrificing any of the edvan tages of the invention.

In the drawings:

Figure 1 represents a side elevation of the improved couplin in its assembled form connecting the adjacent ends of a. pair of pipe sections, Y

Fig'. 2 is e top Ipien view of the seme showing the cover plete partly in section,

Fig. 3 'is a longitudinal sectional View taken ontheline 8-3 of Fig. 2,

ig. 4 is en end view of the device, ig. 5 is e detail cross sectional. view teiten on the' line 5 5 of Fig. l, Fie. 5 is o plu-n View of the blank, from which the body of the coupling;1 is formed,

*igt 7 is e deteil perspective View of one of the parvis, and I "ip". 8 is e detail sectional view illustrato. modification of the coupling, in which cir of pcwls is carried et each end of the piing. j l

v Referring to the drawings in detail the innnerel l designates generically the imi, proved coupling which is preferably formed 'from e. blank 2. The blank 2 is bent to form a substantially cylindrical body 3 having en open top 4i. The body 3 has upstanding piene side wells 5 and 6, which are con1- pressed et each end thereof as at 7 and 8 to provide pcwl housings 9 and 10. Ears 11 are formed integral with the blank adjacent each corner thereof and are bent at right angles to the body so as to overlap each other as et l2 and 13 to form the top walls or the pcwl housings.

Between vthe pewl housings is a. central harsher 15, which has e cover plate 16, the

cover plete 16 being secured to the body by ineens of suitable fasteners 17, which extend through the cover plete and through apertures 18 formed in the inwardly bent lugs 19 which are formed integral with the blank.' The cover plate 16 can be quicklyremoved so that access may be had to the centrai chamber when it is desired to make repairs to the conductor wires in the couplings.

The pewl housings each receive a gravity pewl id which is pivotellv sunnorted adjacent one end thereof by a pin 20, which extends through lregistering aperture 21, formed in the Walls of the pawl housings.

Each gravity pawl 14 has e 'plane upper,

surface 22 and en inwardly curved lower surface 23, which conforms to the contour of the pipe sections 24 and 25, and has a downwardly extending toothed end 26 which is adapted to be received in a. notch 27 formed adjacent each end of the pipe sections 24 and 25.

A. screw 27 is adjustably carried by the overlapping ears 11 and engages the plone upper surface 2 2 of the pnwl 14 to prevent; the toothed end 26 from riding out of the trated in Fig. S of tbe drawings.

notches 27, vThus it will be seen that -tlie possibility of the displacement oit the pipe couplings is reduced to a nnnnnnm.

When the coupling is used for extra large.

-Showyn mede from ay sinfrle of sheet metal it can be readily seen that the seme een be YConstructed malleable iron oi" casting.

The coupling` bes been shown on one type of conduitr but #ne seine can be need to 'the best advantage oneny Iuype of conduit, pipe7 bushing', rod 0i: shaft.

l-lzwing thus described my invention what I claim is:`

In conxbinzition, of a body.` a. pair of pipe sections, means formed on ezieli end of the bod y to receive the pipe Sections, pewl lionsings formed on each end of the body and zii-ranged nbove the pipe sections, graniti' pawls pioielly secured in the pmvl housings, and' :in adjustable screw carried by the pzlwl housing and ai'ranged to engage the free end of the p21-Wis to prevent the same from riding` out of engagement with the seetions. Y

n testimony whereof l my signature in presenve of two Witnesses. Y

ERVYN B. F. DETTMER.

Witnesses v HENRY FLEAR, HOWARD 1W. USLEY. 

